Technology In Action

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© 2008 Prentice
-
Hall, Inc.


1

Technology In Action

© 2008 Prentice
-
Hall, Inc.


2

Technology In Action

Chapter 8

Mobile Computing:

Keeping Your Data on Hand

© 2008 Prentice
-
Hall, Inc.


3

Topics


Advantages and limitations of mobile computing


Mobile computing devices:


Pagers


Cell phones


PDAs


Portable media players


Synchronizing mobile devices with computers


Tablet PCs


Notebooks


© 2008 Prentice
-
Hall, Inc.


4

Mobile Computing:

Is it Right for You?

Advantages


Convenience


Boost productivity


Communicate with others
anywhere


Access to electronic
information

Limitations


Expensive


Battery life


Small screen display


Slow Internet speed

© 2008 Prentice
-
Hall, Inc.


5

Mobile Computing Devices


Pagers


Cellular phones


Portable media players


Personal digital
assistants


Tablet PCs


Laptop computers

© 2008 Prentice
-
Hall, Inc.


6

Comparing Mobile Devices

Mobile Devices: Price, Size, Weight, and Capabilities

Device

Relative Price

Approximate

Size

Approximate


Weight

Standard Capabilities

Paging Device

$ (includes cost for the


pager and a monthly


plan)

2
"
×

2
"
×

0.5
"

0.2 lbs.

Provides numeric and/or text

messaging in one or two directions

Cell Phone

$$ (includes cost for the


phone, a monthly


plan, and Internet


access)

5
"
×

2
"
×

0.5
"
.


0.25 lbs

Provides voice and e
-
mail

connectivity

MP3 Player

$$

$$$

3
"
×

2
"
×

1
"

0.25 lbs.

Provides storage of digital music files

and other data

PDA

$$

$$$

5
"
×

3
"
×

1
"

0.5 lbs.

Provides PIM capabilities, access to

application software, and access

to the Internet

Tablet PC

$$$$$

10
"
×

8
"
×

1
"

3 lbs.

Provides PIM capabilities, access to

application software, access to the

Internet, and special handwriting and

speech
-
recognition capabilities

Laptop

$$$$

$$$$$

10
"
×

13
"
×

2
"

5 to 8 lbs.

Provides all the capabilities of a desktop

computer while also being portable

© 2008 Prentice
-
Hall, Inc.


7

Paging Devices


Small wireless devices that receive
numeric messages (phone
numbers)


Recent technological
advancements enable:


Voice paging:


Receiving voice messages


Alphanumeric paging:


Receiving numeric and text messages


Two
-
way paging:


Receiving and sending text messages

© 2008 Prentice
-
Hall, Inc.


8

Cellular Phones


Full
-
featured communication and information
storage devices


Features include:


Auto
-
redial


Call timers


Voice
-
mail


Voice
-
activated dialing


Internet access


Text messaging


Personal information management

© 2008 Prentice
-
Hall, Inc.


9

Cell Phone Hardware


Microprocessor (CPU):


Coordinates data between components


Runs the operating system


Memory:


ROM stores the operating system


Internal memory chips store:


Contact data


Ring tones


Images


Small application programs

Microprocessor

Memory

© 2008 Prentice
-
Hall, Inc.


10

Cell Phone Hardware


Input devices:


Microphone


Keypad


Graffiti pad


Touch
-
screen


Digital camera


Output devices:


Speaker


LCD display

Microphone


Keypad


LCD

display


Speaker


© 2008 Prentice
-
Hall, Inc.


11

Cell Phone Features


Text messaging:


Short Message Service
(SMS):


Send messages up to 160
characters


Free SMS information


Multimedia Message
Service (MMS):


Send text, sound, images,
and video clips

AFAIK

As far as I know

IDK

I don’t know

B4N

Bye for now

JAS

Just a sec

BRB

Be right back

LOL

Laughing out loud

CUL

See you later


QPSA

¿Qué pasa?

FBM

Fine by me

T+


Think positive

F2T

Free to talk

TTYL

Talk to you later

G2G

Got to go

WUWH

Wish you were here

HRU

How are you?

YBS

You’ll be sorry

Popular Text Messaging Abbreviations

© 2008 Prentice
-
Hall, Inc.


12

Cell Phone Internet Connectivity


Wireless Internet service provider


Maximum speeds of 200 to 300 Kbps


Micro
-
browser software


EDGE

and
EVDO
standards


Difficult to display Web pages on
small screen


Checking e
-
mail is a popular feature


Special “push” technology delivers e
-
mail to a cell phone

© 2008 Prentice
-
Hall, Inc.


13

Portable Media Players


MP3:


Format for storing music


Portable media player (PMP):


A small device that stores and plays music


Storage space determines the number of songs
stored:


Memory chips 64 MB to 256 MB


Hard drive up to 40 GB


Sampling rate also affects


number of songs stored


© 2008 Prentice
-
Hall, Inc.


14

Popular Portable Media Players
and Their Characteristics

Media Capacity

Built
-
In Flash

Memory

Hard Disk

Drive Capacity

Connection

to Computer

Other Features

Creative Labs

Digital MP3

Player FX200

Up to 500 songs

256 MB to 1 GB

None

USB 2.0 port

Built
-
in FM radio, voice

recorder, and five
-
band

equalizer

Oregon

Scientific MP121

Up to 32 hours of

music

512 MB to 1 GB

None

USB 2.0 port

Waterproof to 3 feet,

built
-
in pedometer, built
-
in

FM radio, and equalizer

Apple iPod Nano

Up to 1,000 songs

or 25,000 images

1 GB to 4 GB

None

USB 2.0 port

Weighs only 1.5 ounces,

flash memory provides

for skip
-
free playback

Apple iPod

Up to15,000 songs,

25,000 images, or

150 hours of video

None

30 GB to 60 GB

USB 2.0 port

Has calendar feature that

syncs with Outlook; can

serve as a small, portable

hard drive

Creative Zen
Vision

Up to 15,000 songs

or 120 hours of

movies

None

30 GB

USB 2.0 port

Integrated FM radio and

voice recorder; syncs

with Outlook

© 2008 Prentice
-
Hall, Inc.


15

PMP Flash Memory


Used to add additional memory to
portable media players


Types of flash memory:


Compact Flash:


64 MB to 1 GB


Multimedia (MMC) and SmartMedia:


128 MB


Secure Digital:


512 MB


Sony Memory Stick:


128 MB


Software enables transfer of audio
and video files

© 2008 Prentice
-
Hall, Inc.


16

PMP Ethical Issues


Is it illegal to download MP3 files?


MP3.com:


Song files are on a public server


Permission is given by the artist or recording company to
place the files on the server


A fee is paid to download a file.


Napster:


A file exchange site


Song files were borrowed from users’ computers (peer
-
to
-
peer [P2P] sharing)


Sued for copyright infringement

© 2008 Prentice
-
Hall, Inc.


17

Podcasting


Distributing nonmusic MP3 files over the
Internet


Podcasts can be information, books on
tape audio plays, etc.


People can listen when they wish


iPod
synchronization

transfers new
content.




© 2008 Prentice
-
Hall, Inc.


18


Small devices that store digital information


Known as palm computers or handhelds


PDA hardware includes:


CPU


Operating system


Storage capabilities


Input/output devices


Ports


Personal Digital Assistants (PDAs)

© 2008 Prentice
-
Hall, Inc.


19

PDA Input and Output Devices

Input devices


Touch
-
screen with stylus


Keyboards:


On
-
screen


Integrated


Folding


Digital cameras

Output devices


LCD displays:


Grayscale


Color

© 2008 Prentice
-
Hall, Inc.


20

PDA Processors


Popular processors:


Motorola DragonBall


Texas Instruments OMAP


Intel XScale


Comparing processors:


Speed


Performance:


Benchmarking


Power consumption

© 2008 Prentice
-
Hall, Inc.


21

PDA Operating Systems

Palm OS


Uses less memory than
Windows Mobile


Easy to use graphical
interface


Features include:


Calendar


To
-
do list


Contact information


Viewing Videos


Playing MP3 files


Extra application software
is available

Windows Mobile


Scaled
-
down version of
Windows


More expensive than
Palm OS


Features include:


PDA version of Microsoft
Word and Excel


Viewing videos


Playing MP3 files


Synchronizes with Outlook


Extra application software
is available

© 2008 Prentice
-
Hall, Inc.


22

PDA Memory and Storage


ROM stores the operating
system and the basic
programs


RAM stores additional
applications and data


Flash memory is used for
additional storage

© 2008 Prentice
-
Hall, Inc.


23

PDA File Transfer and
Synchronization


PDA files can be transferred to a
desktop using:


Flash card readers


Cradles


Synchronizing updates files on
both the PDA and desktop


Wireless transfers:


IrDA


Bluetooth

© 2008 Prentice
-
Hall, Inc.


24

PDA Internet Connectivity


An Internet connection requires a wireless ISP


Web pages are accessed using Wireless
Application Protocol (WAP)


© 2008 Prentice
-
Hall, Inc.


25

PDA Software and Accessories


Standard software:


To
-
do list


Contacts manager


Calendar


Additional software:


Microsoft Word and
Excel


Games


Tools


References



Blueboard:


PDA display acts as a
drawing board


Connects to four other
PDAs


© 2008 Prentice
-
Hall, Inc.


26

Converged Technologies


Cell phones with PDA
capability


PDAs with cell phone
capability


Handspring Treo


Sony Ericsson P800

© 2008 Prentice
-
Hall, Inc.


27

Tablet PCs


Portable computers with handwriting
recognition and speech recognition


Two monitor modes:


Laptop


Tablet

© 2008 Prentice
-
Hall, Inc.


28

Tablet PC Hardware


Tablet PC hardware includes:


CPU


Storage capabilities


Input/output devices


Ports


Digital ink technology:


Pressure sensitive screen


Digital pen

© 2008 Prentice
-
Hall, Inc.


29

Tablet Software


Windows XP Tablet PC is the operating system


Applications programs compatible with Windows
XP are available

© 2008 Prentice
-
Hall, Inc.


30

Notebooks


Computing power of a desktop


Weigh 6 pounds

© 2008 Prentice
-
Hall, Inc.


31

Notebook Hardware


DVD/CD
-
RW drives


Hard drives


RAM


Hot
-
swappable bays:


Remove a drive and replace
it with another type


Keyboard


Built
-
in mouse


LCD displays


© 2008 Prentice
-
Hall, Inc.


32

Notebook Operating Systems


Same operating systems
as those found on
desktops


Power management:


Shuts down the hard drive


Turns off the monitor


Puts the computer into
standby mode


© 2008 Prentice
-
Hall, Inc.


33

Notebook Ports


A full set of ports:


Parallel


Monitor


USB


Modem


Ethernet


Audio jacks


FireWire


PCI type I/II card slots


DVI


IrDA

© 2008 Prentice
-
Hall, Inc.


34

Chapter 8 Summary Questions


What are the advantages and limitations of
mobile computing?



© 2008 Prentice
-
Hall, Inc.


35

Chapter 8 Summary Questions


What are the various mobile computing
devices?

© 2008 Prentice
-
Hall, Inc.


36

Chapter 8 Summary Questions


What can pagers do?


© 2008 Prentice
-
Hall, Inc.


37

Chapter 8 Summary Questions


How do cell phone components resemble
a traditional computer and how do cell
phones work?


© 2008 Prentice
-
Hall, Inc.


38

Chapter 8 Summary Questions


What can I carry in a portable media
player and how does it store data?

© 2008 Prentice
-
Hall, Inc.


39

Chapter 8 Summary Questions


For what can I use a PDA and what
internal components and features does it
have?


© 2008 Prentice
-
Hall, Inc.


40

Chapter 8 Summary Questions


How can I synchronize my mobile devices
with my desktop computer?


© 2008 Prentice
-
Hall, Inc.


41

Chapter 8 Summary Questions


What is a tablet PC?


© 2008 Prentice
-
Hall, Inc.


42

Chapter 8 Summary Questions


How powerful are notebooks and how do
they compare to desktop computers?